--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/realtimenetprots/sipfw/SIP/ConnectionMgr/src/TTCPMsgState.h	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,91 @@
+/*
+* Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+* Name        : TTCPMsgState.h
+* Part of     : ConnectionMgr
+* Version     : SIP/4.0
+*
+*/
+
+
+
+
+/**
+ @internalComponent
+*/
+
+#ifndef __TTCPMSGSTATE_H__
+#define __TTCPMSGSTATE_H__
+
+// INCLUDES
+#include <e32base.h>
+
+
+// FORWARD DECLARATIONS
+class MMsgAssemblerContext;
+
+/*
+ * Base class for all TCP message states.
+ */
+class TTCPMsgState 
+	{
+public:
+	virtual ~TTCPMsgState() {};
+
+protected:
+
+	TTCPMsgState(MMsgAssemblerContext& aMsgAssembler);
+
+public:
+
+	virtual void DataReceivedL( TPtr8 aData, TUint& aNextLength ) = 0;
+
+protected:
+
+   /**
+    * find first sip message start position from the parameter data,
+    * 
+    * @param aData TCP messages data received.
+    * @return sip message header start postion if it could be found,
+    *         otherwise KErrNotFound. 
+    */
+    TInt FindHeaderStartPosition( TDesC8& aData ); 
+    
+   /**
+    * find first sip message end position from the parameter data,
+    * 
+    * @param aData TCP messages data received.
+    * @return sip message header end postion if it could be found,
+    *         otherwise KErrNotFound. 
+    */
+    TInt FindHeaderEndPosition( TDesC8& aData );  
+    
+   /** get header end position by compare it with the new header end
+	* position currentlly found.
+	*/
+	void GetHeaderPartEndPosition ( TInt  aEndMarkPosition, 
+		                            TInt  aEndMarkLength,  
+		                            TInt& aHeaderEndPosition );         
+    
+protected:
+    MMsgAssemblerContext& iMsgAssembler;
+    
+#ifdef CPPUNIT_TEST
+    friend class CTCPMsgStatesTest;
+#endif
+	};
+
+#endif // end of __TTCPMSGSTATE_H__
+
+// end of file